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Police are investigating the possibility that a woman who died after being attacked on a footpath was targeted because of her Islamic dress.

Although officers said there was no "firm evidence" of the attack being motivated by the victim's religious dress, they said this was one of "the main lines of investigation".

"We are conscious that the dress of the victim will have identified her as likely being a Muslim and this is one of the main lines of the investigation but again there is no firm evidence at this time that she was targeted because of her religion," Detective Superintendent Tracy Hawkings said.

The woman, who was in her early 30s, died after suffering head and body injuries in the attack on Tuesday morning on a footpath in the Essex town of Colchester.

Essex Police confirmed she was wearing a dark navy blue full length robe called an Abaya, and a patterned multi-coloured Hijab headscarf.

Police have launched a criminal investigation into the alleged manipulation of cancer waiting lists at a hospital in Colchester.

The investigation into Colchester Hospital University NHS Foundation Trust will aim to establish whether any criminal offences have been committed. The hospital was placed into special measures after the allegations came to light last month.

Colchester Zoo said it was "devastated" by the death of two of their "beloved" Timber wolves.

The two wolves were among five that escaped their enclosure this morning at around 7.30pm. In a statement, the Zoo said they were still looking for one of the escaped wolves, with the help of police.

One of the wolves returned immediately of its own accord and one was darted and recaptured.

Unfortunately, as they were further away and an anaesthetic dart takes 15 minutes to take effect, two had to be shot.

The remaining wolf is thought to be sheltering in thick undergrowth and the police are assisting in its recapture. Wolves are naturally timid and provided they are not cornered in any way do not provide a risk to the public.